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berarti Sigma Fx = 0
T2.cos 30 - T1. cos 60 = 0
T2. 1/2√3 - T1. 1/2 = 0
1/2√3 T2 = 1/2 T1
T2 = (1/2 T1)/(1/2√3)
T2 = (1/√3) T1
sigma Fy = 0
T1. sin 60 + T2. sin 30 - w = 0
T1.(√3/2) + T2.(1/2) - m. g = 0
T1.(√3/2) + (1/√3) T1.(1/2) - 8.10 = 0
(√3/2) T1 + 1/(2√3) T1 = 80
(6 + 2)/(4√3) T1 = 80
8/(4√3) T1 = 80
T1 = 80/(8/(4√3)
T1 = 80*(4√3/8)
T1 = 40√3
besar tegangan tali T = 40√3 N